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Direct linkGustafsson, Jan-Eric – School Effectiveness and School Improvement, 2013
In educational effectiveness research, it frequently has proven difficult to make credible inferences about cause and effect relations. The article first identifies the main categories of threats to valid causal inference from observational data, and discusses designs and analytic approaches which protect against them. With the use of data from 22…
Descriptors: Attribution Theory, Homework, Mathematics Achievement, Regression (Statistics)
Hansson, Ase; Gustafsson, Jan-Eric – Scandinavian Journal of Educational Research, 2013
Socioeconomic status (SES) is often used as control variable when relations between academic outcomes and students' migrational background are investigated. When measuring SES, indicators used must have the same meaning across groups. This study aims to examine the measurement invariance of SES, using data from TIMSS, 2003. The study shows that a…
Descriptors: Socioeconomic Status, Error of Measurement, Immigrants, Outcomes of Education
